Telescopic sight mount

ABSTRACT

A sight mount for securing a telescopic sight to a mounting rail on top of a shell rejection mechanism of a rifle includes a bracket formed of thermoplastics and comprising a plurality of first threaded holes, a plurality of second threaded holes perpendicular to and offset with respect to the first threaded holes, a lengthwise bottom recess distal a top of the bracket and being slidably mounted to the mounting rail, and a lengthwise groove in the recess being proximate to the top of the bracket; a plurality of fasteners for securing the bracket to the telescopic sight by driving through the first threaded holes into the telescopic sight; and a plurality of fastening assemblies for securing the bracket to the mounting rail by driving through the second threaded holes.

BACKGROUND OF THE INVENTION

1. Field of Invention

The invention relates to rifle sight mounts and more particularly to animproved sight mount for securing a telescopic sight to a mounting railon top of a shell rejection mechanism of a rifle.

2. Description of Related Art

A great number of patents about telescopic sight mounts are disclosed.For example, U.S. Pat. No. 4,021,954 discloses a telescopic sight mountwhich is characterized by that a bracket secured around a rifle barrel,a sight adapter axially slidably mounted to an upper portion of thebracket, a first tongue member lockingly engaged with a telescopicsight, and a second tongue member lockingly engaged with the bracket.

Thus, continuing improvements of telescopic sight mount are constantlysought.

SUMMARY OF THE INVENTION

It is therefore one object of the invention to provide a sight mount forsecuring a telescopic sight to a mounting rail on top of a shellrejection mechanism of a rifle, comprising a bracket formed ofthermoplastics and comprising a plurality of first threaded holes, aplurality of second threaded holes perpendicular to and offset withrespect to the first threaded holes, a lengthwise bottom recess distal atop of the bracket and being slidably mounted to the mounting rail, anda lengthwise groove in the recess being proximate to the top of thebracket; a plurality of fasteners for securing the bracket to thetelescopic sight by driving through the first threaded holes into thetelescopic sight; and a plurality of fastening assemblies for securingthe bracket to the mounting rail by driving through the second threadedholes.

The above and other objects, features and advantages of the inventionwill become apparent from the following detailed description taken withthe accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a sight mount according to a firstpreferred embodiment of the invention;

FIG. 2 is an exploded view of the sight mount to be assembled with atelescopic sight;

FIG. 3 is a perspective view of the sight mount mounted on mountingrails on top of a rifle barrel and the telescopic sight mounted on thesight mount;

FIG. 4 is an exploded view of a sight mount according to a secondpreferred embodiment of the invention; and

FIG. 5 is a perspective view of the sight mount of FIG. 4 mounted onmounting rails on top of a rifle barrel and the telescopic sight mountedon the sight mount.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 3, a telescopic sight mount 1 in accordance witha first preferred embodiment of the invention comprises the followingcomponents as discussed in detail below.

A bracket 2 is made of thermoplastics (i.e., having a limitedcompressibility) and is an elongated block having a cross-section ofrectangle. The bracket 2 comprises two spaced, vertical first threadedholes 22, two spaced, horizontal second threaded holes 23 offset withrespect to the first threaded holes 22 (i.e., not intersecting), alengthwise recess 20 on bottom, the recess 20 having two oppositedovetailed groove sides, and a lengthwise groove 21 oriented verticallyin the recess 20, the groove 21 having a rectangular section in each ofvertical and horizontal directions. The second threaded hole 23 isdiscontinuous because it is disrupted by a joining portion of the groove21 and the recess 20 (see FIG. 1).

An individual may place the bracket 2 on a mounting rail 40 projectingout of top of a shell rejection mechanism 41 of a rifle 4 by sliding therecess 20 along the mounting rail 40. The mounting rail 40 has twotongue sides. Hence, the recess 20 and the mounting rail 40 are engagedtogether in a tongue and dovetail fashion.

Four fastening assemblies in which each of a first group of twofastening assemblies is a hex socket screw 31 adapted to drive throughthe second threaded holes 23 into two threaded holes 50 on bottom of atelescopic sight 5 for mounting the telescopic sight 5 on top of thebracket 2. Each of a second group of two fastening assemblies comprisesa hex socket screw 31 adapted to drive through the first threaded hole22 (over the mounting rail 40) and a nut 32 at the other side of thebracket 2 by means of a hex wrench. An individual may put a washer 33and a wing nut 34 on a portion of the hex socket screw 31 projecting outof the other side of the bracket 2, and then hold and turn two oppositewings 340 of the wing nut 34 to clampingly fasten the bracket 2 on themounting rail 40.

Referring to FIGS. 4 and 5, a telescopic sight mount in accordance witha second preferred embodiment of the invention is shown. Thecharacteristics of the second preferred embodiment are detailed below.

The bracket 2 is separated into a large first part 24 and a small matingsecond part 25. On the other side of the first part 24 there areprovided with two circular cavities 26 each at the mouth of the secondthreaded hole 23. The cavity 26 is shaped to receive both the nut 32 andthe washer 33 so as to form a flat surface on the other side of thefirst part 24.

While the invention herein disclosed has been described by means ofspecific embodiments, numerous modifications and variations could bemade thereto by those skilled in the art without departing from thescope and spirit of the invention set forth in the claims.

1. A sight mount for securing a telescopic sight to a mounting rail ontop of a shell rejection mechanism of a rifle, comprising: a bracketformed of thermoplastics and comprising a plurality of first threadedholes, a plurality of second threaded holes perpendicular to and offsetwith respect to the first threaded holes, a lengthwise bottom recessdistal a top of the bracket and being slidably mounted to the mountingrail, and a lengthwise groove in the recess being proximate to the topof the bracket; a plurality of fasteners for securing the bracket to thetelescopic sight by driving through the first threaded holes into thetelescopic sight; and a plurality of fastening assemblies for securingthe bracket to the mounting rail by driving through the second threadedholes.
 2. The sight mount of claim 1, wherein the second threaded holesare discontinuous when passing a joining portion of the groove and therecess.